Writing & History. History is impossible without the written word as one would lack context in which to interpret physical evidence from the ancient past. Writing records the lives of a people and so is the first necessary step in the written history of a culture or civilization.
Lesson Summary. In review, chemical energy is energy stored in chemicals'. Energy is 'the ability to do work. Chemical energy is a type of potential energy that is energy due to the position of an object or objects.
Quantum chemistry is a branch of chemistry whose primary focus is the application of quantum mechanics in physical models and experiments of chemical systems. It is also called molecular quantum mechanics.uantum chemistry is a branch of chemistry whose primary focus is the application of quantum mechanics in physical models and experiments of chemical systems. It is also called molecular quantum mechanics.